A nice touch is the crisp lettering on the Model R10-5A10-120 coil.
R10-E1Y4-J10.0K Potter & Brumfield Sensitive Plug-in Relay 4.5mA 4PDT 2A 28VDC
This relay carries the TE Connectivity brand, which is something many people look for.
You will find that Model R10-5A10-120 pairs well with common DIN rail setups.